Swift Package Manager wrapper around the AprilTag fiducial-marker detection
library, packaged for iOS 15+, macOS 12+, Mac Catalyst 15+, and tvOS 15+.
Features:
- All standard AprilTag families (tag36h11, tag25h9, tag16h5, tag36h10,
tagCircle21h7, tagCircle49h12, tagCustom48h12, tagStandard41h12,
tagStandard52h13)
- Sub-pixel corner localization
- Direct CVPixelBuffer luminance-plane support — no color-space conversion
needed for AVFoundation captures
- Configurable detector parameters (thread count, decimation, blur, edge
refinement, decode sharpening)
- Pure Swift API; vendored upstream C source compiles without external deps
Wrapper code (Sources/SwiftAprilTag/) is MIT-licensed.
Vendored upstream AprilTag C source (Sources/CAprilTag/) is BSD 2-Clause,
copyright (c) 2013-2016 The Regents of The University of Michigan.
See LICENSE, LICENSE-AprilRobotics.md, and NOTICE.
Maintained by KeyQ, Inc. — https://www.keyq.cloud